//
//  MainTabbar.swift
//  微博
//
//  Created by 呆仔～林枫 on 16/3/6.
//  Copyright © 2016年 呆仔～林枫. All rights reserved.
//

import UIKit

class MainTabbar: UITabBar {
    override init(frame: CGRect) {
        super.init(frame: frame)
addSubview(plusBtn)
    }

    required init?(coder aDecoder: NSCoder) {
//        fatalError("init(coder:) has not been implemented")
   super.init(coder:aDecoder)
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        let w = UIScreen.mainScreen().bounds.width / 5
        let h = self.bounds.height
        let rect = CGRect(x: 0, y: 0, width: w, height: h)
        var index:CGFloat = 0
        for subview in subviews{
        
            if subview.isKindOfClass(NSClassFromString("UITabBarButton")!){
            subview.frame = CGRectOffset(rect, index*w, 0)
//                if index == 1{
//                index++
//                }
//            index++
                index+=(index == 1 ? 2 : 1)
            }
        }
        
        addSubview(plusBtn)
        plusBtn.frame = CGRectOffset(rect, 2*w, 0)
    }

    lazy var plusBtn:UIButton = {
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: .Normal)
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button_highlighted"), forState: .Highlighted)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: .Normal)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add_highlighted"), forState: .Highlighted)
        return btn
        
    }()
}

